/**
 * The MIT License (MIT)
 * 
 * Copyright (c) 2016 mo_yq5 (mo_yq5@163.com)
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 */
/**
 * 统一收单线下交易查询<br>
 * 该接口提供所有支付宝支付订单的查询，商户可以通过该接口主动查询订单状态，完成下一步的业务逻辑。<br>
 * 需要调用查询接口的情况： <br>
 * 当商户后台、网络、服务器等出现异常，商户系统最终未接收到支付通知； <br>
 * 调用支付接口后，返回系统错误或未知交易状态情况； <br>
 * 调用alipay.trade.pay，返回INPROCESS的状态； <br>
 * 调用alipay.trade.cancel之前，需确认支付状态；
 * @author Moyq5
 * @since 2016年8月7日
 */
package com.openapi.alipay.trade.query;